[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 14 18:33:11 UTC 2013


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 15 Jun, 2013

Report Website:     http://thyme.rand.apnic.net
Detailed Analysis:  http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined:                              455698
    Prefixes after maximum aggregation:                          185776
    Deaggregation factor:                                          2.45
    Unique aggregates announced to Internet:                     226123
Total ASes present in the Internet Routing Table:                 44284
    Prefixes per ASN:                                             10.29
Origin-only ASes present in the Internet Routing Table:           34691
Origin ASes announcing only one prefix:                           16153
Transit ASes present in the Internet Routing Table:                5876
Transit-only ASes present in the Internet Routing Table:            150
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      55
    Max AS path prepend of ASN ( 56484)                              51
Prefixes from unregistered ASNs in the Routing Table:               844
    Unregistered ASNs in the Routing Table:                         367
Number of 32-bit ASNs allocated by the RIRs:                       4791
Number of 32-bit ASNs visible in the Routing Table:                3717
Prefixes from 32-bit ASNs in the Routing Table:                   10806
Special use prefixes present in the Routing Table:                   25
Prefixes being announced from unallocated address space:            229
Number of addresses announced to Internet:                   2642097068
    Equivalent to 157 /8s, 123 /16s and 51 /24s
    Percentage of available address space announced:               71.4
    Percentage of allocated address space announced:               71.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.6
Total number of prefixes smaller than registry allocations:      159877

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                   109564
    Total APNIC prefixes after maximum aggregation:               33495
    APNIC Deaggregation factor:                                    3.27
Prefixes being announced from the APNIC address blocks:          111077
    Unique aggregates announced from the APNIC address blocks:    45247
APNIC Region origin ASes present in the Internet Routing Table:    4852
    APNIC Prefixes per ASN:                                       22.89
APNIC Region origin ASes announcing only one prefix:               1226
APNIC Region transit ASes present in the Internet Routing Table:    822
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         25
Number of APNIC region 32-bit ASNs visible in the Routing Table:    572
Number of APNIC addresses announced to Internet:              725150944
    Equivalent to 43 /8s, 56 /16s and 236 /24s
    Percentage of available APNIC address space announced:         84.7

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 131072-133119
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                    158888
    Total ARIN prefixes after maximum aggregation:                80309
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           159495
    Unique aggregates announced from the ARIN address blocks:     73943
ARIN Region origin ASes present in the Internet Routing Table:    15730
    ARIN Prefixes per ASN:                                        10.14
ARIN Region origin ASes announcing only one prefix:                5982
ARIN Region transit ASes present in the Internet Routing Table:    1647
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:      19
Number of ARIN addresses announced to Internet:              1081940032
    Equivalent to 64 /8s, 125 /16s and 24 /24s
    Percentage of available ARIN address space announced:          57.2

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 393216-394239
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  45/8,  47/8,  48/8,  50/8,  52/8,
                        53/8,  54/8,  55/8,  56/8,  57/8,  63/8,  64/8,
                        65/8,  66/8,  67/8,  68/8,  69/8,  70/8,  71/8,
                        72/8,  73/8,  74/8,  75/8,  76/8,  96/8,  97/8,
                        98/8,  99/8, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
                       205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
                       216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                    117300
    Total RIPE prefixes after maximum aggregation:                60050
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           120868
    Unique aggregates announced from the RIPE address blocks:     78057
RIPE Region origin ASes present in the Internet Routing Table:    17215
    RIPE Prefixes per ASN:                                         7.02
RIPE Region origin ASes announcing only one prefix:                8166
RIPE Region transit ASes present in the Internet Routing Table:    2833
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2358
Number of RIPE addresses announced to Internet:               656316516
    Equivalent to 39 /8s, 30 /16s and 152 /24s
    Percentage of available RIPE address space announced:          95.4

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 196608-199679
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                   48304
    Total LACNIC prefixes after maximum aggregation:               9400
    LACNIC Deaggregation factor:                                   5.14
Prefixes being announced from the LACNIC address blocks:          52699
    Unique aggregates announced from the LACNIC address blocks:   24771
LACNIC Region origin ASes present in the Internet Routing Table:   1960
    LACNIC Prefixes per ASN:                                      26.89
LACNIC Region origin ASes announcing only one prefix:               590
LACNIC Region transit ASes present in the Internet Routing Table:   364
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   762
Number of LACNIC addresses announced to Internet:             131745576
    Equivalent to 7 /8s, 218 /16s and 71 /24s
    Percentage of available LACNIC address space announced:        78.5

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-62463, 262144-263167 plus ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                  10741
    Total AfriNIC prefixes after maximum aggregation:              2481
    AfriNIC Deaggregation factor:                                  4.33
Prefixes being announced from the AfriNIC address blocks:         11330
    Unique aggregates announced from the AfriNIC address blocks:   3893
AfriNIC Region origin ASes present in the Internet Routing Table:   632
    AfriNIC Prefixes per ASN:                                     17.93
AfriNIC Region origin ASes announcing only one prefix:              189
AfriNIC Region transit ASes present in the Internet Routing Table:  129
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46645504
    Equivalent to 2 /8s, 199 /16s and 193 /24s
    Percentage of available AfriNIC address space announced:       46.3

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2945      11561         922   Korea Telecom (KIX)
17974     2545        855          91   PT TELEKOMUNIKASI INDONESIA
 7545     1999        320         108   TPG Internet Pty Ltd
 4755     1744        391         191   TATA Communications formerly 
 9829     1517       1205          40   BSNL National Internet Backbo
 9583     1218         91         503   Sify Limited
 7552     1162       1080          13   Vietel Corporation
 4808     1144       2124         334   CNCGROUP IP network: China169
 9498     1129        309          70   BHARTI Airtel Ltd.
24560     1077        394         164   Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     3007       3691          75   bellsouth.net, inc. 
18566     2065        382         184   Covad Communications 
 1785     1992        677         124   PaeTec Communications, Inc.
22773     1984       2927         122   Cox Communications, Inc.
20115     1665       1618         615   Charter Communications 
 4323     1625       1138         406   Time Warner Telecom
  701     1535      11143         800   UUNET Technologies, Inc. 
30036     1328        297         642   Mediacom Communications Corp 
 7018     1297      11039         830   AT&T WorldNet Services
11492     1218        216         359   Cable One 

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8402     1667        544          16   Corbina telecom
34984     1276        244         222   BILISIM TELEKOM
 2118     1069         97          13   EUnet/RELCOM Autonomous Syste
20940      891        312         695   Akamai Technologies European 
13188      808         98          82   Educational Network
31148      802         40          25   FreeNet ISP
 8551      772        370          44   Bezeq International
 6830      766       2376         440   UPC Distribution Services
12479      677        786          59   Uni2 Autonomous System
34744      676        173          59   SC GVM SISTEM 2003 SRL

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
10620     2660        418         208   TVCABLE BOGOTA 
28573     2655       1534         167   NET Servicos de Comunicao S.A
 7303     1730       1154         225   Telecom Argentina Stet-France
 8151     1283       2721         401   UniNet S.A. de C.V. 
18881      995        844          20   Global Village Telecom 
 6503      865        434          65   AVANTEL, S.A. 
27947      842         89         106   Telconet S.A
 3816      715        306          85   Empresa Nacional de Telecomun
 7738      698       1370          35   Telecomunicacoes da Bahia S.A
 6147      665        374          25   Telefonica Del Peru 

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
36998     1237         80           4   MOBITEL
24863      885        274          31   LINKdotNET AS number
 6713      537        617          25   Itissalat Al-MAGHRIB
 8452      455        956           9   TEDATA
24835      344         80           8   RAYA Telecom - Egypt
 3741      261        922         219   The Internet Solution 
15706      222         32           6   Sudatel Internet Exchange Aut
29571      205         17           9   Ci Telecom Autonomous system 
12258      192         28          66   Vodacom Internet Company 
29975      191        667          21   Vodacom

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     3007       3691          75   bellsouth.net, inc. 
 4766     2945      11561         922   Korea Telecom (KIX)
10620     2660        418         208   TVCABLE BOGOTA 
28573     2655       1534         167   NET Servicos de Comunicao S.A
17974     2545        855          91   PT TELEKOMUNIKASI INDONESIA
18566     2065        382         184   Covad Communications 
 7545     1999        320         108   TPG Internet Pty Ltd
 1785     1992        677         124   PaeTec Communications, Inc.
22773     1984       2927         122   Cox Communications, Inc.
 4755     1744        391         191   TATA Communications formerly 

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
28573      2655        2488      NET Servicos de Comunicao S.A
17974      2545        2454      PT TELEKOMUNIKASI INDONESIA
10620      2660        2452      TVCABLE BOGOTA 
 4766      2945        2023      Korea Telecom (KIX)
 7545      1999        1891      TPG Internet Pty Ltd
18566      2065        1881      Covad Communications 
 1785      1992        1868      PaeTec Communications, Inc.
22773      1984        1862      Cox Communications, Inc.
 8402      1667        1651      Corbina telecom
 4755      1744        1553      TATA Communications formerly 

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS  Designation  Network              Transit AS  Description
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
30031   UNALLOCATED  12.27.122.0/24        7018       AT&T WorldNet Servic
13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.103.0/24         209       Qwest 
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
14764   UNALLOCATED  12.108.237.0/24       7018       AT&T WorldNet Servic
33649   UNALLOCATED  12.111.112.0/24      19029       New Edge Networks 
26064   UNALLOCATED  12.149.37.0/24        7018       AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
128.0.0.0/24          2876     Jump Management SRL
128.0.16.0/21        43568     RIPE Network Coordination Cen
128.0.24.0/21        41794     Altline LLC
128.0.46.0/23        39743     Mobimax Telecom SRL
128.0.53.0/24        60993     Totalsoft SA
128.0.54.0/24        60972     Carpatair SA
128.0.55.0/24        48571     SC efectRO SRL
128.0.57.0/24        60993     Totalsoft SA
128.0.58.0/23         9050     RTD-ROMTELECOM Autonomous Sys
128.0.60.0/24         9050     RTD-ROMTELECOM Autonomous Sys

Complete listing at http://thyme.rand.apnic.net/current/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
62.61.221.0/24       24974     Tachyon Europe BV - Wireless 
64.185.224.0/24      27431     JTL Networks Inc.
64.185.225.0/24      27431     JTL Networks Inc.
64.185.226.0/24      27431     JTL Networks Inc.
64.185.227.0/24      27431     JTL Networks Inc.
64.185.228.0/24      27431     JTL Networks Inc.
64.185.229.0/24      27431     JTL Networks Inc.
64.185.230.0/24      27431     JTL Networks Inc.
64.185.231.0/24      27431     JTL Networks Inc.

Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:17       /9:11      /10:30      /11:91      /12:250     
/13:484     /14:899     /15:1600    /16:12706   /17:6653    /18:11160   
/19:22176   /20:32045   /21:34349   /22:47590   /23:42254   /24:239425  
/25:1305    /26:1660    /27:851     /28:46      /29:61      /30:18      
/31:0       /32:17      

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

  ASN   No of nets  Total ann.   Description
18566     2016          2065      Covad Communications 
 6389     1726          3007      bellsouth.net, inc. 
 8402     1363          1667      Corbina telecom
22773     1292          1984      Cox Communications, Inc.
36998     1231          1237      MOBITEL
30036     1196          1328      Mediacom Communications Corp 
11492     1180          1218      Cable One 
 1785     1062          1992      PaeTec Communications, Inc.
 6983     1011          1138      ITC^Deltacom 
10620      991          2660      TVCABLE BOGOTA 

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

   1:818       2:841       3:3         4:19        5:791       6:12     
   8:556      12:1923     13:3        14:836      15:11       16:3      
  17:10       20:17       23:370      24:1765     27:1473     31:1320   
  32:43       33:2        34:5        36:40       37:1855     38:874    
  39:2        40:170      41:2693     42:195      44:6        46:1929   
  47:2        49:660      50:734      52:11       54:35       55:5      
  57:26       58:1150     59:575      60:314      61:1405     62:1126   
  63:2022     64:4320     65:2162     66:4178     67:2054     68:1081   
  69:3264     70:786      71:488      72:1917     74:2475     75:323    
  76:303      77:1134     78:1051     79:614      80:1273     81:1007   
  82:654      83:577      84:541      85:1163     86:454      87:994    
  88:538      89:1748     90:147      91:5526     92:606      93:1667   
  94:1865     95:1653     96:513      97:346      98:1005     99:42     
 100:30      101:327     103:2790    105:517     106:146     107:208    
 108:514     109:1822    110:904     111:1053    112:544     113:813    
 114:709     115:964     116:963     117:799     118:1093    119:1313   
 120:379     121:730     122:1798    123:1220    124:1368    125:1377   
 128:639     129:223     130:326     131:662     132:341     133:148    
 134:267     135:67      136:222     137:242     138:359     139:193    
 140:212     141:332     142:538     143:383     144:500     145:93     
 146:507     147:384     148:686     149:369     150:157     151:506    
 152:419     153:188     154:42      155:408     156:268     157:396    
 158:279     159:732     160:343     161:447     162:420     163:221    
 164:598     165:497     166:273     167:597     168:1018    169:130    
 170:1052    171:181     172:21      173:1584    174:546     175:469    
 176:966     177:2057    178:1860    179:29      180:1460    181:465    
 182:1231    183:387     184:692     185:540     186:2293    187:1289   
 188:2150    189:1250    190:6835    192:6721    193:5667    194:4590   
 195:3430    196:1348    197:936     198:4482    199:5338    200:5988   
 201:2238    202:8827    203:8901    204:4514    205:2578    206:2799   
 207:2845    208:4046    209:3618    210:2956    211:1506    212:2186   
 213:1972    214:926     215:98      216:5235    217:1621    218:619    
 219:335     220:1281    221:557     222:322     223:456    

End of report


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